JP2013084141A - Medium conveyance device and medium transaction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sharply achieve noise reduction.SOLUTION: A paper money conveyance part 20 includes: a pulley shaped like a rotatable cylinder, and formed with a pulley tooth section on its outer peripheral surface; a drive belt 32 configured to move in accordance with the rotation of the pulley when a belt tooth section 33 formed on its inner peripheral surface is engaged with the pulley tooth section of the pulley; and a driven roller shaped like a rotatable cylinder, and configured to be butted to paper money BL sandwiched with a paper money conveyance path on which the paper money BL at the outer peripheral surface side of the drive belt 32 is conveyed at a position where the belt tooth section 33 of the drive belt 32 is not brought into contact with the pulley tooth section of the pulley.

Description

  The present invention relates to a medium transport apparatus and a medium transaction apparatus, and is suitable for application to, for example, an automatic teller machine (ATM) that performs a desired transaction by inserting a medium such as cash.

  2. Description of the Related Art Conventionally, in an automatic teller machine used in a financial institution or the like, for example, a customer deposits cash such as banknotes or coins according to transaction details with a customer, and also withdraws cash to a customer. ing.

  As an automated teller machine, for example, a banknote deposit / withdrawal port for receiving and receiving banknotes with customers, a discrimination unit for discriminating the denomination and authenticity of inserted banknotes, and temporarily holding inserted banknotes The thing which has a temporary storage part to perform and the denomination cassette which stores a banknote for every denomination is proposed (for example, refer patent document 1).

  In such an automatic teller machine, as shown in FIG. 18, a drive belt 932 made of a rubber endless belt and driven rollers 942 (942a, 942b, 942c, and 942d that abut on the outer peripheral surface of the drive belt 932 are provided. ), 948, 954, and 958, there are those in which a banknote transport unit 920 that sandwiches and transports the banknote BL is used.

  As shown in FIG. 19, the drive belt 932 has a belt tooth portion 933 including a belt tooth crest portion 933 a and a belt tooth valley portion 933 b formed on the inner peripheral surface, and is formed on the outer peripheral surfaces of the drive pulley 924 and the driven pulley 930. It is wound around the pulley tooth portion and circulates between the drive pulley 924 and the driven pulley 930.

  The driven roller 958 is rotatably disposed around a driven roller shaft 60 that is restricted to move only in the front-rear direction, and is urged rearward by the tension spring 50 to press the drive belt 932 against the drive pulley 924.

  As shown in FIG. 20, the banknote transport unit 920 forms the belt tooth portion 933 a slightly lower than the pulley tooth portion 925 a, so that the belt tooth portion 933 of the driving belt 932 becomes the pulley tooth portion 925 of the driving pulley 924. Engage smoothly.

Japanese Patent Laying-Open No. 2011-2921 (FIG. 1)

  In such a banknote conveyance part 920, as shown in FIG. 20, there is a slight gap between the pulley tooth root part 925b of the driving pulley 924 and the belt tooth peak part 933a of the driving belt 932, and the pulley tooth roots. The deformation due to the bending of the drive belt 932 is allowed by the gap between the portion 925b and the belt tooth portion 933a.

  Further, since the belt tooth crest 933a is formed thicker than the belt tooth crest 933b, when a force is applied from the outside, the belt tooth crest 933a is deformed more greatly than the belt tooth crest 933b due to the elastic force of rubber.

  For this reason, when the drive belt 932 in which the driven roller 958 circulates is pressed against the drive pulley 924, as shown in FIG. 20B, the belt tooth crest 933a of the drive belt 932 and the pulley tooth crevice 925b of the drive pulley 924 When the meshing portion is pressed, the drive belt 932 is deformed so as to bend, and the inner side surface of the belt tooth crest portion 933a abuts on the outer side surface of the pulley tooth valley portion 925b.

  For this reason, the portion where the belt tooth crest portion 933a and the pulley tooth crest portion 925b are engaged is pressed rather than the portion where the belt tooth portion 933b and the pulley tooth crest portion 925a are engaged (FIG. 20A). At that time (FIG. 20B), the driven roller 958 moves toward the driving pulley 924, and the distance L between the central axis of the driving pulley 924 and the central axis of the driven roller 958 becomes smaller.

  When the driving pulley 924 rotates, the pulley tooth crest 925a and the pulley tooth valley 925b formed in the driving pulley 924 alternately pass through the position where the driven roller 958 presses the driving belt 932. The driven roller 958 vibrates in the front-rear direction at a frequency corresponding to the number of rotations and the number of teeth of the pulley tooth portion 925.

  The vibration of the driven roller 958 is transmitted to the conveyance guide (not shown) or the frame of the automatic teller machine via the driven roller shaft 60, and there is a possibility that noise is generated from the automatic teller machine.

  The present invention has been made in consideration of the above points, and intends to propose a medium transport apparatus and a medium transaction apparatus that can be made silent.

  In order to solve such a problem, in the medium conveying device of the present invention, a pulley having a rotatable cylindrical shape and a tooth portion formed on the outer peripheral surface and a tooth portion formed on the inner peripheral surface are formed on the tooth portion of the pulley. The drive belt that meshes and moves according to the rotation of the pulley and a rotatable cylindrical shape, and the medium on the outer peripheral surface side of the drive belt is conveyed at a position where the tooth portion of the drive belt does not contact the tooth portion of the pulley. A roller that comes into contact with the medium is provided across the medium conveyance path.

  This medium conveying apparatus can convey a banknote without vibrating a roller by making a roller contact | abut to a banknote avoiding the part which the tooth | gear part of a pulley and the tooth | gear part of a drive belt are contacting.

  Further, in the medium transaction apparatus of the present invention, a reception unit that receives a transaction related to a medium, a conveyance unit that conveys the medium received by the reception unit, and a pulley that is rotatable and has teeth formed on the outer peripheral surface And the tooth portion formed on the inner peripheral surface meshes with the tooth portion of the pulley and moves in accordance with the rotation of the pulley, and a rotatable cylindrical shape, and the tooth portion of the driving belt becomes the tooth portion of the pulley. At a position where no contact is made, a roller that comes into contact with the medium is provided across a medium conveyance path on which the medium on the outer peripheral surface side of the drive belt is conveyed.

  This medium transaction apparatus can convey a banknote without vibrating a roller by making a roller contact | abut to a banknote avoiding the part which the tooth | gear part of a pulley and the tooth | gear part of a drive belt are contacting.

  According to the present invention, the banknote can be transported without vibrating the roller by avoiding the portion where the tooth portion of the pulley and the tooth portion of the drive belt are in contact with each other and causing the roller to contact the banknote. Thus, the present invention can realize a medium transport apparatus and a medium transaction apparatus that can be silenced.

It is a rough-line perspective view which shows the external appearance structure of an automatic teller machine. It is a basic diagram which shows the internal structure of an automatic teller machine. It is a rough-line side view which shows the structure of the banknote conveyance part by 1st Embodiment. It is a rough-line perspective view which shows the structure (1) of the drive pulley, drive belt, and driven roller by 1st Embodiment. It is an approximate line sectional view showing composition (2) of a drive pulley, a drive belt, and a driven roller by a 1st embodiment. It is a rough-line side view which shows the structure of the banknote conveyance part by 2nd thru | or 5th Embodiment. It is a basic diagram which shows the structure of the drive pulley, drive belt, and driven roller by 2nd Embodiment. It is a rough-line perspective view which shows the structure of the drive belt by 2nd Embodiment. It is a basic diagram which shows the structure of the drive pulley, drive belt, and driven roller by 3rd Embodiment. It is a rough-line perspective view which shows the structure of the drive belt by 3rd Embodiment. It is a basic diagram which shows the structure of the drive pulley by 4th Embodiment, a drive belt, and a driven roller. It is a basic diagram which shows the structure of the drive pulley by 5th Embodiment, a drive belt, and a driven roller. It is a rough-line perspective view which shows the structure of the drive belt by 5th Embodiment. It is a rough-line perspective view which shows the structure (1) of the drive pulley, drive belt, and driven roller by other embodiment. It is a rough-line perspective view which shows the structure (2) of the drive pulley, drive belt, and driven roller by other embodiment. It is a rough-line perspective view which shows the structure (1) of the drive belt by other embodiment. It is a rough-line perspective view which shows the structure (2) of the drive belt by other embodiment. It is a rough-line side view which shows the structure of the conventional banknote conveyance part. It is a rough-line perspective view which shows the structure of the conventional drive belt. It is a rough-line perspective view which shows the structure of the conventional drive pulley, a drive belt, and a driven roller.

  Hereinafter, modes for carrying out the invention (hereinafter referred to as embodiments) will be described in detail with reference to the drawings.

<1. First Embodiment>
[1-1. Overall configuration of automatic teller machine]
As shown in FIG. 1, an automatic teller machine 1 is configured with a box-shaped housing 2 as the center, and is configured to perform transactions relating to cash with customers.

  The housing 2 is provided with a customer service portion 3 at a location where it is easy to insert a bill or operate with a touch panel while the customer faces the front surface 2A side, that is, a location extending from the top of the front surface 2A to the upper surface.

  The customer service section 3 directly exchanges cash, bankbooks, etc. with the customer, and is configured to receive information about transactions and accept operation instructions. The coin deposit / withdrawal slot 11, the banknote deposit / withdrawal slot 12, A passbook insertion slot 13, a card insertion slot 14 and a display operation unit 15 are provided.

  The coin deposit / withdrawal port 11 and the bill deposit / withdrawal port 12 are portions into which coins and bills to be deposited by customers are respectively inserted and coins and bills to be dispensed to customers are respectively discharged. The coin deposit / withdrawal port 11 and the banknote deposit / withdrawal port 12 are configured to be opened or closed by driving shutters provided respectively.

  The passbook insertion port 13 is a portion where a passbook used in the transaction is inserted and the passbook is discharged when the transaction ends. A passbook processing unit (not shown) for recording transaction contents and the like in a passbook is provided at the back of the passbook insertion port 13.

  The card insertion slot 14 is a portion into which various cards such as a cash card are inserted or ejected. A card processing section (not shown) for reading account numbers and the like magnetically recorded on various cards is provided at the back of the card insertion slot 14.

  The display operation unit 15 is integrated with an LCD (Liquid Crystal Display) that displays an operation screen at the time of transaction and a touch panel for selecting a transaction type, inputting a personal identification number, transaction amount, and the like.

  FIG. 2 is a side view of the automatic teller machine 1 shown in FIG. 1 as viewed from the direction of the arrow A, and mainly shows a portion related to bill processing in the internal configuration of the automatic teller machine 1. As shown in the figure, in the automatic teller machine 1, there are a customer service section 3 on the upper side, a discrimination section 4 for determining the denomination and authenticity of banknotes, and a temporary storage section 5 for temporarily storing deposited banknotes. Etc., and a banknote storage unit 6 made of a denomination cassette is provided on the lower side. A conveyance path 7 indicated by a thick line in the figure conveys banknotes along the short side direction between the respective parts.

  The automatic teller machine 1 is configured to control the whole by the control unit 8. When the customer performs a deposit transaction for depositing banknotes, after receiving a predetermined operation input via the display operation unit 15, the control unit 8 opens the shutter of the banknote deposit / withdrawal port 12 to insert the banknotes.

  Subsequently, the control unit 8 conveys the inserted banknotes to the discrimination unit 4 via the transport path 7 for discrimination, and transports the banknotes identified as normal banknotes to the temporary storage unit 5 to temporarily hold them. The reject banknotes identified as not to be traded are conveyed to the banknote deposit / withdrawal port 12 and returned to the customer.

  Thereafter, the control unit 8 allows the customer to confirm the deposit amount via the display operation unit 15, conveys the banknotes held in the temporary storage unit 5 again to the discrimination unit 4, and re-discriminates the denomination, so that the transport path 7 is conveyed and stored in each cassette of the banknote storage unit 6 according to the identified denomination via the banknote transport unit 20 which is a part of 7.

  On the other hand, when performing the withdrawal transaction for withdrawing banknotes to the customer, the control unit 8 transports the banknotes transported from the discrimination unit 4 to the banknote deposit / withdrawal port 12 via the transport path 7 and delivers them to the customer.

[1-2. Configuration of bill transport unit]
The banknote conveyance part 20 by 1st Embodiment is shown in FIG.3, FIG4 and FIG.5. The right side in the figure of FIG. 3 which attached | subjected the same code | symbol to the part corresponding to FIG. (Hereinafter also simply referred to as the rear side).

  In the vicinity of the front end of the banknote transport unit 20, a cylindrical drive pulley shaft 22 attached to a guide (not shown) along the left-right direction is disposed.

  The drive pulley shaft 22 is drivingly connected to a motor 26 through a drive transmission means such as a gear, and rotates in the clockwise direction and the counterclockwise direction in FIG.

  The drive pulley 24 (24R and 24L) is rotatable about the drive pulley shaft 22 in the clockwise direction and the counterclockwise direction in FIG. 3 with a distance shorter than the length in the long side direction of the bill BL. Two are arranged side by side.

  The drive pulley 24 has a gear shape, and the pulley tooth crest portions 25a and the pulley tooth valley portions 25b are alternately perpendicular to the circumferential direction at a predetermined pitch along the circumferential direction (rotational direction) on the outer peripheral surface (circumferential side surface). It is formed from the right end to the left end along the width direction (left-right direction). Hereinafter, the pulley tooth crest portion 25a and the pulley tooth valley portion 25b are collectively referred to as a pulley tooth portion 25.

  A columnar driven pulley shaft 28 is provided in the vicinity of the rear end of the banknote transport unit 20 behind the drive pulley shaft 22 so as to be movable in the front-rear direction along the left-right direction by a slide groove (not shown).

  In the driven pulley shaft 28, the driven pulley 30 is rotatable about the driven pulley shaft 28 in the clockwise direction and the counterclockwise direction in the drawing of FIG. 3 at an interval shorter than the length of the bill BL in the long side direction. Two are arranged side by side.

  The driven pulley 30 has a gear shape, and a pulley tooth portion having the same pitch and height as the drive pulley 24 is formed from the right end to the left end along the circumferential direction on the outer peripheral surface.

  On the outer peripheral surface of the drive pulley 24 and the driven pulley 30, a belt tooth portion 33 that meshes with the pulley tooth portion 25 of the drive pulley 24 and the pulley tooth portion of the driven pulley 30 is formed on the inner peripheral surface. Is built.

  The belt tooth portion 33 of the drive belt 32 protrudes slightly lower than the pulley tooth portion 25a along the width direction (left-right direction) orthogonal to the traveling direction (circulation direction) of the drive belt 32. 33 a and belt tooth valley portions 33 b formed lower than the belt tooth crest portion 33 a are alternately provided along the traveling direction of the drive belt 32.

  At both the left and right ends of the drive pulley 24 and the driven pulley 30, flanges are located at heights located on the outer side in the radial direction from the central axis of the drive pulley 24 and the driven pulley 30 toward the outer peripheral surface rather than the pulley tooth crest 25 a. By projecting, the drive belt 32 is prevented from moving away from the drive pulley 24 and the driven pulley 30 in the left-right direction.

  An auto tension spring 34 is attached to the driven pulley shaft 28 on the front side. The auto tension spring 34 stretches the drive belt 32 by urging the driven pulley shaft 28 in a direction (backward direction) in which the distance from the drive pulley shaft 22 increases based on the control of the control unit 8, and is always constant. Ensure the tension (belt tension). Here, the tension (belt tension) may be kept constant by an adjusting mechanism such as screw fixing.

  As shown in FIG. 4, a cylindrical roller boss 56 having an outer diameter substantially the same as that of the drive pulley 24, on the left side of the drive pulley 24L, on the right side of the drive pulley 24R, and between the drive pulley 24L and the drive pulley 24R. (56L, 56R, and 56C) are rotatably attached around the drive pulley shaft 22 in the clockwise and counterclockwise directions in FIG.

  The roller bosses 56L and 56R are arranged on the left and right sides with an interval shorter than the length of the bill BL in the long side direction. No teeth are formed on the outer peripheral surface of the roller boss 56, and the roller boss 56 has a flat shape along the circumferential direction.

  The driven roller 58 extends along the left-right direction on the front side of the roller boss 56 and contacts the outer peripheral surface of the roller boss 56 around a cylindrical driven roller shaft 60 provided so as to be movable in the front-rear direction by a slide groove (not shown). It is provided so as to be rotatable in the clockwise and counterclockwise directions in FIG.

  A tension spring 50 is attached to the driven roller shaft 60 on the front side. The tension spring 50 urges the driven roller shaft 60 rearward along the slide groove to press the outer peripheral surface of the driven roller 58 against the outer peripheral surface of the roller boss 56 without sandwiching the drive belt 32.

  In this manner, the banknote transport unit 20 includes the driven roller 58 in which the banknote BL transported from the transport path 7 (FIG. 2) is disposed outside the banknote transport path on which the banknote BL is transported on the outer peripheral surface side of the drive belt 32. Then, the paper is conveyed while being sandwiched between roller bosses 56 that are disposed with the position shifted in the left-right direction with respect to the drive pulley 24 and the drive belt 32 inside the bill conveyance path.

  As shown in FIG. 5, a cylindrical driven roller shaft 52 extending in the left-right direction across the drive belt 32 is provided below the drive pulley 24 so as to be movable in the vertical direction by a slide groove (not shown). In FIG. 5, the driven roller 58 is not shown and is omitted.

  The driven roller shaft 52 is provided with a driven roller 54 that is rotatable in the clockwise and counterclockwise directions in FIG. 3 with the driven roller shaft 52 as an axis.

  A tension spring 50 is attached to the driven roller shaft 52 on the lower side. The tension spring 50 biases the driven roller shaft 52 upward along the slide groove, thereby biasing the driven roller 54 supported by the driven roller shaft 52 upward.

  The driven roller 54 is disposed such that the central axis is separated from the driving pulley 24 by a distance M rearward. In this way, the driven roller 54 is disposed so that the central axis is shifted rearward with respect to the drive pulley 24, so that the meshing between the pulley tooth portion 25 of the drive pulley 24 and the belt tooth portion 33 of the drive belt 32 is disengaged. The drive belt 32 is pressed against the drive pulley 24 at a position where it is not in contact.

  Accordingly, the driven roller 54 presses the bill BL toward the outer peripheral surface of the drive belt 32 while being pressed toward the drive pulley 24 so that the drive belt 32 does not come off the drive pulley 24.

  Between the drive pulley 24 and the driven pulley 30, a plurality of idle pulley shafts 36 (36 a, 36 b, 36 c, and 36 d) having a cylindrical shape extending in the left-right direction below the drive pulley shaft 22 and the driven pulley shaft 28. Is fixed by a guide (not shown) so that it can rotate and does not move.

  Each idle pulley shaft 36 has an idle pulley 38 that is rotatable about the idle pulley shaft 36 in the clockwise direction and the counterclockwise direction in FIG. 3 and has substantially the same diameter as the drive pulley 24 and the driven pulley 30. (38a, 38b, 38c and 38d) are provided.

  The idle pulley 38 has a gear shape, and a pulley tooth portion having the same pitch and height as the drive pulley 24 is formed from the right end to the left end along the circumferential direction on the outer peripheral surface.

  As with the drive pulley 24 and the driven pulley 30, flanges project from the idle pulley 38 to the outer side in the radial direction from the pulley tooth crest of the idle pulley 38 on either the left or right side of the idle pulley 38. The drive belt 32 is prevented from falling off.

  Since the idle pulley shaft 36 is disposed below the drive pulley shaft 22 and the driven pulley shaft 28, the lower end portion of the idle pulley 38 is positioned below the lower end portions of the drive pulley 24 and the driven pulley 30. .

  Therefore, each idle pulley 38 presses the lower part of the drive belt 32 downwardly against the belt tension.

  Each idle pulley 38 is provided with a cylindrical driven roller shaft 40 that extends in the left-right direction behind the idle pulley shaft 36 on the lower side of the drive belt 32 and is fixed to a guide so as to be rotatable and non-movable. Provided.

  The driven roller shaft 40 includes a driven roller 42 (42a, 42b, 42c and 42d) which is rotatable in the clockwise and counterclockwise directions in FIG. And the upper end of the driven roller 42 is provided above the lower end of the idle pulley 38.

  Therefore, each driven roller 42 presses between the idle pulleys 38 arranged in the front-rear direction so as to push up the lower portion of the drive belt 32 against the belt tension.

  In this way, the idle pulley 38 pushes down the lower part of the drive belt 32 and the driven roller 42 pushes up the lower part of the drive belt 32, so that the driven roller 42 has a belt tension of the drive belt 32. Is pressed downward.

  Thus, the banknote transport unit 20 presses the banknote BL against the driven roller 42 by the drive belt 32, and transports the banknote BL while the drive belt 32 and the driven roller 42 sandwich the banknote BL.

  Thereby, the banknote conveyance part 20 can abbreviate | omit the tension spring 50 which biases the driven roller shaft 40 compared with the banknote conveyance part 920 (FIG. 18), and can simplify a structure.

  Further, the driven roller 42 is configured such that the central axis is shifted rearward with respect to the idle pulley 38, so that the pulley tooth portion of the idle pulley 38 and the belt tooth portion 33 of the drive belt 32 are disengaged and are not in contact with each other. In the position, the drive belt 32 is pressed against the idle pulley 38 side.

  Behind each driven roller 42, a sorting blade 44 that switches the conveyance direction of the bills BL is rotatably supported by the control of the control unit 8 and an actuator (not shown).

  The sorting blade 44 rotates to either a transfer switching state of a state in which the transfer direction of the conveyed bills BL is passed from the front to the rear so as not to change, or a state in which the transfer direction is switched from the front to the lower and the lower to the front. .

  A cylindrical driven roller shaft 46 extending in the left-right direction is provided in front of the lower side of the driven pulley shaft 28 across the drive belt 32 so as to be vertically movable by a slide groove (not shown).

  The driven roller shaft 46 is provided with a driven roller 48 that can rotate in the clockwise and counterclockwise directions in FIG. 3 with the driven roller shaft 46 as an axis so as not to contact the outer peripheral surface of the driven pulley 30.

  A tension spring 50 is attached to the driven roller shaft 46 on the lower side. The tension spring 50 urges the driven roller shaft 46 upward along the slide groove, and presses the drive belt 32 upward by the driven roller 48.

  Accordingly, the driven roller 48 presses the bill BL toward the driven pulley 30 side so that the drive belt 32 does not come off the driven pulley 30 and presses and conveys the bill BL against the outer peripheral surface of the drive belt 32.

  As described above, the driven roller 48 is configured such that the central axis is shifted forward with respect to the driven pulley 30, so that the meshing between the pulley tooth portion of the driven pulley 30 and the belt tooth portion 33 of the drive belt 32 is disengaged. At a position where the drive belt 32 is not, the drive belt 32 is pressed against the driven pulley 30 side.

[1-3. Operation and effect]
In the above configuration, when the banknote BL is conveyed to the banknote storage unit 6, the driving pulley 24 rotates clockwise, whereby the driving belt 32 rotates in a clockwise direction, and the clockwise driving force is transmitted to the driven pulley 30. As a result, the driven pulley 30 rotates clockwise.

  The banknotes BL conveyed from the conveying unit 7 are sandwiched and sent out by the roller boss 56 and the driven roller 58 while receiving the frictional force of the outer peripheral surface of the driving belt 32, and are further sandwiched and fed out by the driving belt 32 and the driven roller 54. It is.

  Subsequently, the banknote transport unit 20 holds the banknote BL between the driven roller 42 and the drive belt 32, and each cassette of the banknote storage unit 6 positioned below the banknote transport unit 20 according to the transport switching state of the sorting blade 44. Transport to one of the following.

  At this time, the driving force of the motor 26 is transmitted, and the driving belt 32 and each pulley (the driving pulley 24, the driven pulley 30 and the idle pulley 38) are always rotating.

  In the banknote transport unit 20, the driven roller 58 contacts the outer peripheral surface of the roller boss 56 instead of the drive belt 32. The driven roller 54 is disposed at a position where the pulley tooth portion 25 of the drive pulley 24 and the belt tooth portion 33 of the drive belt 32 do not contact each other. Further, the driven roller 48 is disposed at a position where the pulley tooth portion of the driven pulley 30 and the belt tooth portion 33 of the drive belt 32 do not contact each other. Further, the driven roller 42 is disposed at a position where the pulley tooth portion of the idle pulley 38 and the belt tooth portion 33 of the drive belt 32 do not contact each other.

  Thus, in the banknote conveyance part 20, it arranged so that the pulley tooth part of each pulley with which each driven roller respond | corresponds, and the belt tooth part 33 of the drive belt 32 may not contact.

  For this reason, the driven rollers 42, 48, 54 and 58 can reduce the vibration generated by pressing the unevenness of the belt tooth portion 33 of the drive belt 32 against the unevenness of the pulley tooth portion of each rotating pulley.

  Conventionally, noise caused by the vibration of the driven roller leaks to the outside by thickening the casing that covers the entire automatic teller machine, or by placing vibration-absorbing materials that reduce vibrations at various locations inside the automatic teller machine. Was preventing. For this reason, the number of parts in an automatic teller machine has increased, and expensive materials have to be used.

  On the other hand, in the automatic teller machine 1, since it is not necessary to add parts such as a shock absorber or thicken the casing, the automatic teller machine can be downsized without complicating the configuration of the automatic teller machine, Cost increase can be suppressed.

  By the way, without providing the roller boss 56, the driven roller 58 is moved in the vertical direction at the same horizontal position as the drive belt 32, and the pulley tooth portion 25 of the drive pulley 24 and the belt tooth portion 33 of the drive belt 32. It is also possible to arrange them at positions where they do not touch.

  However, in that case, the driven roller 58 cannot press the bill BL against the drive belt 32.

  For this reason, like the driving pulley 24, the driven pulley that contacts the bill BL so that the bill BL does not come off from the pulley at the front and rear ends that are constructed so that the driving belt is folded back is separated from the pulley in the traveling direction of the driving belt. It is desirable to arrange them apart from each other in the width direction perpendicular to the traveling direction of the drive belt.

  According to the above structure, the banknote conveyance part 20 as a medium conveyance apparatus in the automatic teller machine 1 as a medium transaction apparatus becomes a rotatable cylindrical shape, and a pulley in which a pulley tooth part is formed on the outer peripheral surface; A belt tooth portion 33 formed on the inner peripheral surface meshes with a pulley tooth portion of the pulley, and a drive belt 32 that moves according to the rotation of the pulley and a rotatable cylindrical shape. In a position where the pulley tooth portion of the pulley does not come in contact, a driven roller that comes into contact with the banknote BL is provided across a banknote transport path on which the banknote BL on the outer peripheral surface side of the drive belt 32 is transported.

  As a result, the automatic teller machine 1 avoids the portion where the pulley tooth portion of the pulley and the belt tooth portion of the drive belt are in contact with each other and causes the follower roller to abut on the bill without vibrating the follower roller. Can be transported.

<2. Second Embodiment>
[2-1. Configuration of bill transport unit]
The automatic teller machine 101 according to the second embodiment shown in FIGS. 1 and 2 is different from the automatic teller machine 1 according to the first embodiment in that the banknote transport unit 120 is different from the banknote transport unit 20. However, the rest is configured similarly.

  Further, in the banknote transport unit 120 according to the second embodiment, idle pulleys 138 (138a, 138b, 138c and 138d) are driven pulleys 124, as shown in FIG. And the same vertical position as the driven pulley 130.

  Each idle pulley 138 is provided with a cylindrical driven roller shaft 40 extending in the left-right direction directly below the drive belt 132 so as to be movable in the vertical direction by a slide groove (not shown).

  The driven roller shaft 40 includes a driven roller 142 (142a, 142b, 142c, and 142d) that is rotatable in the clockwise and counterclockwise directions in FIG. 6 around the driven roller shaft 40 as an idle pulley 138 (138a, 138b, 138c, and 138d) are provided so as to be in contact with respective outer peripheral surfaces.

  The driven roller shaft 40 is urged upward along a slide groove from a tension spring 50 attached to the lower side, whereby the outer peripheral surface of the driven roller 142 is sandwiched between the driving belt 132 and the outer peripheral surface of the idle pulley 138. Press on.

  Similarly, the driven pulley 124 and the driven pulley 130 are provided with cylindrical driven roller shafts 52 and 46 extending in the left-right direction directly below the drive belt 132 so as to be movable in the vertical direction by a slide groove (not shown).

  The driven roller shafts 52 and 46 include driven rollers 154 and 148 that are rotatable in the clockwise and counterclockwise directions in the drawing around the driven roller shafts 52 and 46, respectively, and the outer peripheral surfaces of the drive pulley 124 and the driven pulley 130. Each is provided to contact.

  The driven roller shafts 52 and 46 are urged upward along a slide groove from a tension spring 50 attached to the lower side, thereby driving the outer peripheral surfaces of the driven rollers 154 and 148 across the drive belt 132 to drive pulleys. 124 and the outer peripheral surface of the driven pulley 130.

  FIG. 7 shows an enlarged view near the drive pulley 124. 7A is a side view of the vicinity of the drive pulley 124, and FIG. 7B is a cross-sectional view taken along line AA in FIG. 7A. In FIG. 7, the driven pulley 154 is not shown and is omitted. Similarly, in the subsequent enlarged views near the drive pulley, the driven pulley disposed below the drive pulley is not shown and is omitted.

  As shown in FIGS. 7 and 8, the driving belt 132 has a planar shape in which the belt tooth crest portion 133 a and the belt tooth valley portion 133 b are along the circulation direction of the driving belt 132 in the center portion in the width direction on the inner peripheral surface. A belt concave portion 162 is formed so as to be lower than the belt tooth root portion 133b. For this reason, the cross section of the drive belt 132 has a concave shape.

  The drive pulley 124 has a planar shape along the rotational direction of the drive pulley 124 at a position facing the belt recess 162 at the center in the width direction on the outer peripheral surface, and is slightly larger than the length of the belt recess 162 in the width direction. A pulley flange portion 164 that protrudes shorter and higher than the height of the pulley tooth portion 125 is provided. Incidentally, the flanges are not formed on the left and right ends of the drive pulley 124.

  Therefore, when the drive belt 132 is circulated, the inner surface (rear side surface) of the belt tooth portion 133 at both ends in the width direction of the drive belt 132 and the outer surface (front surface) of the pulley tooth portion 125 at both ends in the width direction of the drive pulley 124. The belt recess 162 of the drive belt 132 and the pulley flange portion 164 of the drive pulley 124 are always in contact with each other without contacting the side surface.

  The driven roller 158 has a circumferential direction of the driven roller 158 at a position facing the pulley tooth portion 125 of the driving pulley 124 across the belt tooth portion 133 of the driving belt 132 at both ends in the width direction on the outer peripheral surface. A roller recess 166 is formed so as to be lower than the central portion in the width direction so as to have a planar shape.

  For this reason, in the central portion in the width direction on the outer peripheral surface of the driven roller 158, in the circumferential direction of the driven roller 158 at a position facing the pulley flange portion 164 of the driving pulley 124 with the belt concave portion 162 of the driving belt 132 interposed therebetween. A roller convex portion 168 having a planar shape along the projection is provided.

  Therefore, when the drive belt 132 is circulated, both end portions in the width direction of the outer peripheral surface of the drive belt 132 and the roller concave portions 166 that are both end portions in the width direction of the outer peripheral surface of the driven roller 158 are not in contact with each other. The outer peripheral surface on the back side where the belt concave portion 162 is formed on the inner peripheral surface and the roller convex portion 168 of the driven roller 158 are always in contact with each other.

  In this way, the driven roller 158 avoids the position where the belt tooth portion 133 is formed on the inner peripheral surface of the drive belt 132 and the position where the pulley tooth portion 125 is formed on the outer peripheral surface of the drive pulley 124. The belt concave portion 162 is pressed against the pulley flange portion 164 of the driving pulley 124 by the convex portion 168.

  Although the drive pulley 124 and the driven roller 158 have been described above, the driven pulley 130 and the driven roller 148, the idle pulley 138, and the driven roller 142 are configured similarly.

[2-2. Operation and effect]
In the above configuration, when the banknote BL is conveyed, the driven roller 158 has a position where the belt tooth portion 133 is formed on the inner peripheral surface of the drive belt 132 and a pulley tooth portion 125 formed on the outer peripheral surface of the drive pulley 124. The belt concave portion 162 is pressed against the pulley flange portion 164 of the drive pulley 124 by the roller convex portion 168, avoiding the position where it is placed.

  The banknote transport unit 120 sandwiches and transports the banknote BL by the roller convex portion 168 of the driven roller 158 and the central portion in the width direction of the outer peripheral surface of the drive belt 132.

  When the drive belt 132 is circulated, the inner surface of the belt tooth portion 133 of the drive belt 132 and the outer surface of the pulley tooth portion 125 of the drive pulley 124 are not in contact with each other, and the belt recess 162 and the drive pulley 124 of the drive belt 132 are contacted. The pulley flange portion 164 is always in contact.

  As a result, the driven roller 158 can reduce vibration generated by pressing the unevenness of the belt tooth portion 133 of the drive belt 132 against the unevenness of the pulley tooth portion 125 of the rotating drive pulley 124.

  Further, when the drive belt 132 is circulated, both end portions in the width direction of the outer peripheral surface of the drive belt 132 and the roller concave portion 166 of the driven roller 158 are not in contact with each other, and the belt concave portion 162 is formed on the inner peripheral surface of the drive belt 132. The outer peripheral surface on the back side of the position where the roller is located is in contact with the roller convex portion 168 of the driven roller 158 at all times.

  When the driven roller is formed in a planar shape from the right end to the left end in the width direction like the driven roller 58 (FIG. 4), both end portions in the width direction of the driven roller are the inner peripheral surfaces of the drive belt 132. The outer peripheral surface on the back side of the position where the belt tooth portion 133 is formed is pressed.

  The drive belt 132 has a belt recess 162 that is thinner than the belt teeth 133. For this reason, when the driven roller presses the outer peripheral surface on the back side of the belt recess 162 and the outer peripheral surface on the back side of the belt tooth portion 133, stress is applied to the left and right ends of the drive belt 132, and the drive belt 132 has a central portion in the width direction. As a fulcrum, the right and left end portions may bend and break so as to sink into the inner peripheral side.

  On the other hand, in the banknote conveyance part 120, the roller recessed part 166 was formed in the driven roller 158, and it was made not to press the left-right both ends part of the drive belt 132. FIG. Thereby, the banknote conveyance part 120 can prevent the both right and left ends of the drive belt 132 from bending, and can prevent the drive belt 132 from being broken.

  The drive belt 132 is formed with belt tooth portions 133 on both the left and right sides of the belt recess 162.

  For this reason, the drive belt 132 can form belt tooth portions for two rows along the circulation direction. As a result, the pulley tooth portion 125 and the belt tooth portion 133 are compared with the case where the belt tooth portion is formed for one row along the circulation direction (that is, when the belt concave portions are formed on the left and right ends of the drive belt 132). Since a large contact area can be provided, an equivalent transmission torque can be generated with a smaller belt width.

  Further, in the banknote transport unit 120, the drive pulley 124 is provided with a pulley flange portion 164 so that the drive belt 132 can be moved in the width direction from the drive pulley 124 without forming flanges on the left and right ends of the drive pulley 124. Can be prevented from slipping out of place.

  According to the above configuration, the belt recess 162 formed lower than the belt tooth portion 133 along the traveling direction of the driving belt 132 is provided in the central portion of the driving belt 132 in the direction orthogonal to the traveling direction, and the pulley rotates. A pulley flange portion formed higher than the pulley tooth portion along the rotation direction of the pulley is provided so as to abut on the belt concave portion 162 at the center portion in the direction orthogonal to the direction. Further, the driven roller is provided with a roller recess formed such that a portion of the pulley facing the pulley tooth portion across the drive belt 132 does not contact the outer peripheral surface of the drive belt 132.

  As a result, the automatic teller machine 101 avoids a portion where the pulley tooth portion of the pulley and the belt tooth portion of the driving belt are in contact with each other and causes the follower roller to contact the bill so that the follower roller does not vibrate. Can be transported.

<3. Third Embodiment>
[3-1. Configuration of bill transport unit]
The automatic teller machine 201 according to the third embodiment shown in FIGS. 1 and 2 is different from the automatic teller machine 101 according to the second embodiment in that the banknote transport unit 220 is different from the banknote transport unit 120. However, the rest is configured similarly.

  6 includes a driving pulley 224, a driven pulley 230, an idle pulley 238 (238a, 238b, 238c and 238d), a driving belt 232, driven rollers 242 (242a, 242b, 242c and 242d), 248. 254 and 258 are a driving pulley 124, a driven pulley 130, an idle pulley 138 (138a, 138b, 138c and 138d), a driving belt 132, a driven roller 142 (142a, 142b, 142c and 142d), 148, 154 and 158, Is different.

  FIG. 9 shows an enlarged view of the vicinity of the drive pulley 224. 9A is a side view of the vicinity of the drive pulley 224, and FIG. 9B is a cross-sectional view taken along line AA in FIG. 9A. In FIG. 9, the driven roller 254 is not shown and is omitted.

  As shown in FIGS. 9 and 10, the drive belt 232 has a planar shape in which the belt tooth crest portions 233 a and the belt tooth valley portions 233 b are along the circulation direction of the drive belt 232 at both ends in the width direction on the inner peripheral surface. A belt recess 262 that is cut lower than the belt tooth root 233b is formed. For this reason, the cross section of the drive belt 232 has a convex shape.

  The drive pulley 224 has a planar shape along the rotational direction of the drive pulley 224 at a position facing the belt recess 262 at both ends in the width direction on the outer peripheral surface, and is slightly larger than the length of the belt recess 262 in the width direction. A pulley flange portion 264 that protrudes shorter and higher than the height of the pulley tooth portion 225 is provided.

  For this reason, when the drive belt 232 is circulated, the inner side surface (rear side surface) of the belt tooth portion 233 at the center in the width direction of the drive belt 232 and the outer surface (front side) of the pulley tooth portion 225 at the center portion in the width direction of the drive pulley 224 The belt recess 262 of the drive belt 232 and the pulley flange portion 264 of the drive pulley 224 are always in contact with each other without contacting the side surface.

  The driven roller 258 is positioned along the circumferential direction of the driven roller 258 at a position facing the pulley tooth portion 225 of the driving pulley 224 across the belt tooth portion 233 of the driving belt 232 at the center in the width direction on the outer peripheral surface. A roller recess 266 is formed so as to be lower than both ends in the width direction so as to have a planar shape.

  For this reason, at both ends in the width direction on the outer peripheral surface of the driven roller 258, in the circumferential direction of the driven roller 258 at positions facing the pulley flange portion 264 of the drive pulley 224 with the belt recess 262 of the drive belt 232 interposed therebetween. A roller convex portion 268 having a planar shape along the projection is provided.

  Therefore, when the drive belt 232 is circulated, the central portion of the outer peripheral surface of the drive belt 232 in the width direction and the roller concave portion 266 which is the central portion of the outer peripheral surface of the driven roller 258 are not in contact with each other. The outer peripheral surface on the back side where the belt concave portion 262 is formed on the inner peripheral surface and the roller convex portion 268 of the driven roller 258 always come into contact with each other.

  In this way, the driven roller 258 avoids the position where the belt tooth portion 233 is formed on the inner peripheral surface of the drive belt 232 and the position where the pulley tooth portion 225 is formed on the outer peripheral surface of the drive pulley 224. The belt concave portion 262 is pressed against the pulley flange portion 264 of the drive pulley 224 by the convex portion 268.

  Although the drive pulley 224 and the driven roller 258 have been described above, the driven pulley 230 and the driven roller 248, the idle pulley 238, and the driven roller 242 are configured similarly.

[3-2. Operation and effect]
In the above configuration, when the bill BL is conveyed, the driven roller 258 has a position where the belt tooth portion 233 is formed on the inner peripheral surface of the drive belt 232 and a pulley tooth portion 225 formed on the outer peripheral surface of the drive pulley 224. The belt concave portion 262 is pressed against the pulley flange portion 264 of the drive pulley 224 by the roller convex portion 268 while avoiding the position where it is placed.

  The banknote transport unit 220 sandwiches and transports the banknote BL between the roller convex part 268 of the driven roller 258 and both end portions in the width direction of the outer peripheral surface of the drive belt 232.

  When the drive belt 232 is circulated, the inner surface of the belt tooth portion 233 of the drive belt 232 and the outer peripheral surface of the pulley tooth portion 225 of the drive pulley 224 are not in contact with each other, and the belt recess 262 of the drive belt 232 and the drive pulley 224 are contacted. The pulley flange portion 264 is always in contact.

  Accordingly, the driven roller 258 can reduce vibration generated by pressing the unevenness of the belt tooth portion 233 of the driving belt 232 against the unevenness of the pulley tooth portion 225 of the rotating driving pulley 224.

  Further, when the drive belt 232 is circulated, the central portion in the width direction of the outer peripheral surface of the drive belt 232 and the roller concave portion 266 of the driven roller 258 are not in contact with each other, and the belt concave portion 262 is formed on the inner peripheral surface of the drive belt 232. The outer peripheral surface on the back side of the position where the roller is located is in contact with the roller convex portion 268 of the driven roller 258 at all times.

  Thus, in the banknote conveyance part 220, the roller recessed part 266 was formed in the driven roller 258, and the center part of the drive belt 232 was not pressed. Thereby, the banknote conveyance part 220 can prevent the center part of the drive belt 232 from bending, and can prevent the breakage of the drive belt 232.

  Furthermore, in the banknote conveyance part 220, since the pulley flange part 264 is protrudingly provided in the both ends of the outer peripheral surface of the drive pulley 224 in the width direction, the drive belt 232 is displaced from the drive pulley 224 in the width direction. Can be prevented.

  According to the above configuration, the belt recess 262 formed lower than the belt tooth portion 233 along the traveling direction of the driving belt 232 is provided at both ends of the driving belt 232 in the direction orthogonal to the traveling direction, and the pulley rotates. A pulley flange portion formed higher than the pulley tooth portion along the rotation direction of the pulley is provided so as to come into contact with the belt recess 262 at both ends in a direction orthogonal to the direction. In addition, the driven roller is provided with a roller recess formed such that a portion of the pulley facing the pulley tooth portion across the drive belt 232 does not contact the outer peripheral surface of the drive belt 232.

  As a result, the automatic teller machine 201 avoids a portion where the pulley tooth portion of the pulley and the belt tooth portion of the driving belt are in contact with each other, and makes the follower roller contact with the bill without vibrating the follower roller. Can be transported.

<4. Fourth Embodiment>
[4-1. Configuration of bill transport unit]
The automatic teller machine 301 according to the fourth embodiment shown in FIGS. 1 and 2 is different from the automatic teller machine 101 according to the second embodiment in the banknote transport unit 320 from the banknote transport unit 120. However, the rest is configured similarly.

  6 includes a driving pulley 324, a driven pulley 330, an idle pulley 338 (338a, 338b, 338c, and 338d), a driving belt 332, and driven rollers 342 (342a, 342b, 342c, and 342d), 348. 354 and 358 are a driving pulley 124, a driven pulley 130, an idle pulley 138 (138a, 138b, 138c and 138d), a driving belt 132, a driven roller 142 (142a, 142b, 142c and 142d), 148, 154 and 158, Is different.

  FIG. 11 shows an enlarged view of the vicinity of the drive pulley 324. 11A is a side view of the vicinity of the drive pulley 324, and FIG. 11B is a cross-sectional view taken along line AA in FIG. 11A. In FIG. 11, the driven roller 354 is not shown and is omitted.

  The drive pulley 324 has a pulley flange portion 364 having a planar outer surface along the circumferential direction of the drive pulley 324 at both end portions in the width direction on the outer peripheral surface, protruding higher than the height of the pulley tooth portion 325. Has been.

  The pulley flange portion 364 is made of rubber on the outer peripheral surface. When the belt tooth portion 333 of the drive belt 332 meshes with the pulley tooth portion 325 of the drive pulley 324, the pulley flange portion 364 is radially outer than the outer peripheral surface of the drive belt 332. It is formed in the height located in.

  For this reason, the driven roller 358 always contacts the pulley flange portion 364 of the drive pulley 324 at both ends in the width direction without contacting the outer peripheral surface of the drive belt 332.

  At this time, since the outer peripheral surface of the driven roller 358 is not in direct contact with the outer peripheral surface of the drive belt 332, the bill BL cannot be sandwiched and conveyed by the driven roller 358 and the drive belt 332.

  The driven roller 358 rotates while pressing the bill BL against the pulley flange portion 364. The outer peripheral surface of the pulley flange portion 364 is configured to have a surface friction coefficient and an area sufficient for transporting the bills BL.

  Thereby, the banknote conveyance part 320 pinches and conveys a banknote with the driven roller 358 and the pulley flange part 364 of the drive pulley 324.

[4-2. Operation and effect]
In the above configuration, when the banknote BL is conveyed, the driven roller 358 presses the banknote BL against the pulley flange portion 364 that is erected higher than the outer peripheral surface of the drive belt 332 at both widthwise ends of the drive pulley 324. The bills BL are conveyed by rotating while rotating.

  Thus, in the banknote conveyance part 320, since a general toothed belt can be used without processing, such as providing a recessed part, the supply property of a drive belt is good and it can manufacture at low cost.

  In the banknote conveyance part 20 (FIG. 4) mentioned above, the banknote BL was clamped with the roller boss | hub 56 and the driven roller 58. FIG. Here, the roller bosses 56 </ b> R and 56 </ b> L and the driven roller 58 that contacts the roller boss 56 are arranged on the outer side in the left-right direction with a certain distance from the drive belt 32. Further, the transport path 7 (FIG. 2) is configured to receive the bill BL by two drive belts (not shown) disposed at the same distance as the distance between the two drive belts 32 in the bill transport path 20 in the left-right direction. Transport.

  For this reason, when banknote BL is conveyed to the banknote conveyance part 20 from the conveyance path 7, the position where the said banknote BL is clamped will move to the outer side of the left-right direction rapidly.

  In this case, a force that pulls the bill BL outward in the left-right direction is applied, and the bill BL may be torn. In addition, when the banknote BL is inclined (skewed) with respect to the transport direction, a force is applied in the direction of pulling one end of the banknote BL, and the skew angle of the banknote BL is increased.

  On the other hand, in the banknote conveyance part 320, the banknote BL was clamped by the driven roller 358 and the pulley flange part 364 adjacent to the drive belt 332.

  Thus, in the banknote conveyance part 320, the position which clamps banknote BL does not change rapidly in the left-right direction. Thereby, banknote conveyance part 320 can prevent damaging banknote BL.

  According to the above configuration, the pulley has the outer periphery of the drive belt 332 when the belt tooth portion 333 of the drive belt 332 meshes with the pulley tooth portion of the pulley at both ends of the outer peripheral surface in the direction orthogonal to the rotation direction of the pulley. A pulley flange portion 364 projecting outward from the surface was provided, and the roller was in contact with the pulley flange portion of the pulley.

  As a result, the automatic teller machine 301 avoids a portion where the pulley tooth portion of the pulley and the belt tooth portion of the driving belt are in contact with each other so that the driven roller is brought into contact with the banknote without vibrating the driven roller. Can be transported.

<5. Fifth embodiment>
[5-1. Configuration of bill transport unit]
The automatic teller machine 401 according to the fifth embodiment shown in FIGS. 1 and 2 is different from the automatic teller machine 101 according to the second embodiment in that the banknote transport unit 420 is different from the banknote transport unit 120. However, the rest is configured similarly.

  6 includes a driving pulley 424, a driven pulley 430, an idle pulley 438 (438a, 438b, 438c and 438d), a driving belt 432, driven rollers 442 (442a, 442b, 442c and 442c), 448, 454 and 458 are a driving pulley 124, a driven pulley 130, an idle pulley 138 (138a, 138b, 138c and 138d), a driving belt 132, a driven roller 142 (142a, 142b, 142c and 142c), 148, 154 and 158. Is different.

  FIG. 12 shows an enlarged view near the drive pulley 424. 12A shows a side view of the vicinity of the drive pulley 424, and FIG. 12B shows a side view of FIG. 12A viewed from the front. In FIG. 12, the driven roller 454 is not shown and is omitted.

  As shown in FIG. 13, the drive belt 432 is a so-called helical tooth belt, and a belt tooth portion 433 is formed by being inclined by a tooth inclination angle Θ of 45 degrees with respect to the width direction. The drive pulley 424 is formed with a pulley tooth portion 425 that is inclined with respect to the width direction by a tooth inclination angle Θ similar to that of the drive belt 432 so that the belt tooth portion 433 of the drive belt 432 is engaged.

  Since the belt tooth portion 425 is inclined by the tooth inclination angle Θ, the drive belt 432 tends to move in one direction in the left-right direction when the circulation operation is performed. On the other hand, flanges project from the pulley teeth 425 to the outside in the radial direction at both the left and right ends of the drive pulley 424, thereby preventing the drive belt 432 from coming off from the drive pulley 424. .

  The driven roller 458 does not have a convex part and a concave part, and is formed in a cylindrical shape having a planar shape along the width direction.

[5-2. Operation and effect]
In the above configuration, when the banknote BL is conveyed, the driven roller 458 causes the drive belt 432 formed with the belt tooth portion 433 inclined by the tooth inclination angle Θ of 45 degrees with respect to the width direction to the belt tooth with respect to the width direction. The pulley 425 is pressed against the drive pulley 424 formed with the pulley tooth portion 425 inclined by the same tooth inclination angle Θ as the portion 433.

  In the conventional banknote conveyance part 920 (FIG. 18, 19 and 20), the belt tooth part 933 and the pulley tooth part 925 are formed along the left-right direction. For this reason, when the driven roller 958 abuts on the drive belt 932 and presses along the left-right direction, when the outer peripheral surface of the position where the belt tooth portion 933a exists is pressed, the belt tooth portion 933a is moved to the pulley tooth valley portion 925b. The pushing drive belt 932 is bent toward the front.

  On the other hand, when the outer peripheral surface of the position where the belt tooth root portion 933b exists is pressed, even if the driven roller 958 presses the belt tooth root portion 933b toward the pulley tooth peak portion 925a, the drive belt 932 is bent. There is nothing.

  In the banknote conveyance part 420, the belt tooth part 433 and the pulley tooth part 425 are formed to be inclined by a tooth inclination angle Θ with respect to the left-right direction.

  For this reason, in the banknote conveyance part 420, as shown in FIG.12 (b), when the driven roller 458 presses the drive belt 432, the contact point TP where the belt root part 433b contact | abuts the pulley tooth peak part 425a, Three locations appear along the left-right direction.

  Even if the driven roller 458 presses the contact point TP from the outer peripheral surface, the drive belt 432 hardly bends in the direction of the drive pulley 424.

  For this reason, in the banknote conveyance part 420, even if the drive pulley 424 rotates, the distance between the center axis of the drive pulley 424 and the center axis of the driven roller 458 is always constant, and the driven roller 458 does not vibrate in the front-rear direction.

  In the above configuration, the belt tooth portion 433 of the drive belt 432 is formed to be inclined by the tooth inclination angle Θ with respect to the direction orthogonal to the traveling direction of the drive belt 432, and the pulley tooth portion of the pulley corresponds to the belt tooth portion 433. Thus, it is formed to be inclined by a tooth inclination angle Θ with respect to the direction orthogonal to the rotation direction of the pulley.

  Thus, even when the pulley rotates, the automatic teller machine 401 vibrates the driven roller by always providing a portion where the belt tooth valley portion and the pulley tooth crest portion abut at a position where the driven roller presses the drive belt. A banknote can be conveyed without making it.

<6. Other embodiments>
In the above-described second embodiment, the case where the drive belt 132 is pressed against the drive pulley 124 by the driven roller 158 having the roller recess 166 provided therein has been described.

  The present invention is not limited to this, and the driving belt 132 is driven by a driven roller 558 that is flat in the width direction and does not have a roller recess, as shown in FIG. You may make it press on the pulley 124. FIG.

  Further, in the above-described third embodiment, the case where the driving belt 232 is pressed against the driving pulley 224 by the driven roller 258 in which the roller concave portion 266 is provided has been described.

  The present invention is not limited to this, and the driving belt 232 is driven by a driven roller 658 having a flat surface in the width direction without having a roller recess as shown in FIG. You may make it press on the pulley 224. FIG.

  Furthermore, in the above-described fifth embodiment, the case where the tooth inclination angle Θ is 45 degrees has been described.

  The present invention is not limited to this, and the tooth inclination angle of the pulley tooth portion of the driving pulley that meshes with the belt tooth portion 733 of the driving belt 732 with a tooth inclination angle Θ of 90 degrees as in the driving belt 732 formed of a so-called rib belt shown in FIG. The angle Θ may be 90 degrees.

  In this case, when the driving pulley rotates, the pulley tooth crest portion of the driving pulley and the belt tooth crest portion 733b of the driving belt 732, and the pulley tooth crest portion of the driving pulley and the belt tooth crest portion 733a of the driving belt 732 appear. Since the contact is always made, the positional relationship between the drive pulley and the driven roller does not change, and the vibration of the driven roller can be further prevented.

  Further, since the rotational force of the driving pulley is transmitted to the driving belt 732 by the frictional force generated while the pulley tooth portion of the driving pulley and the belt tooth portion 733 of the driving belt 732 bite each other, a large transmission torque can be generated. it can.

  Further, as shown in FIG. 17, a drive belt 832 having a belt tooth portion 833 in which tooth portions having the same tooth inclination angle Θ are formed symmetrically about the center portion in the left-right direction may be used. As a result, the drive belt 832 generates a force that moves in the left direction and a force that moves in the right direction, and cancels each other, thereby preventing the drive belt 832 from shifting in the width direction from the drive pulley and falling off. it can.

  Further, in the fifth embodiment described above, there are three contact points TP along the left-right direction where the pulley tooth crest 425a of the drive pulley 424 and the belt tooth crest 433b of the drive belt 432 abut. Said.

  The present invention is not limited to this, and it is sufficient that one or more contact points TP exist along the left-right direction. In this case, the contact point TP increases as the tooth inclination angle Θ increases, and the drive belt is less likely to bend toward the drive pulley.

  Furthermore, in embodiment mentioned above, the case where this invention was applied when conveying a banknote in the banknote conveyance part of the automatic teller machine which transacts cash was described.

  The present invention is not limited to this. For example, the present invention may be applied when a medium is sandwiched and conveyed by the outer peripheral surface of a drive belt and a driven roller in various apparatuses that convey a paper-like medium.

  Furthermore, in embodiment mentioned above, although the banknote was described as a medium, this invention is not restricted to this, For example, what is necessary is just a thin paper-like medium like a gift certificate, a cash voucher, an admission ticket.

  Further, in the above-described embodiment, the medium is conveyed by the driving pulley 24, the driven pulley 30 and the idle pulley 38 as the pulley, the driving belt 32 as the driving belt, and the driven rollers 42, 48, 54 and 58 as the rollers. The case where the banknote conveyance part 20 as an apparatus was comprised was described.

  The present invention is not limited to this, and a medium transporting device may be configured by pulleys having various configurations, a drive belt, and rollers.

  Further, in the above-described embodiment, the customer service unit 3 as a reception unit, the conveyance path 7 as a conveyance unit, the drive pulley 24 as a pulley, the driven pulley 30 and the idle pulley 38, and the drive belt as a drive belt. A case has been described in which the automatic teller machine 1 as a medium transaction apparatus is constituted by 32 and driven rollers 42, 48, 54 and 58 as rollers.

  The present invention is not limited to this, and the medium transaction apparatus may be configured by a receiving unit, a conveying unit, a pulley, a driving belt, and a roller having various other configurations.

  The present invention can also be used in various apparatuses that transport paper-like media such as banknotes.

  DESCRIPTION OF SYMBOLS 1,101,201,301,401 …… Automatic teller machine, 2 …… Case, 3 …… Service department, 5 …… Temporary holding part, 7a …… Deposited banknote transport path, 7b …… Discharged banknote transport Road, 12... Banknote deposit / withdrawal port, 20, 120, 220, 320, 420, 920... Bill transport section, 22... Driving pulley shaft, 24, 124, 224, 324, 424, 924. 25, 125, 225, 325, 425, 925 ... pulley tooth, 25a, 425a, 925a ... pulley tooth crest, 25b, 425b, 925b ... pulley tooth crest, 26 ... motor, 28 ... driven Pulley shaft, 30, 130, 230, 330, 430, 930 ... driven pulley, 32, 132, 232, 332, 432, 732, 832, 932 ... drive belt, 33, 133, 233, 33, 433, 733, 833, 933... Belt tooth, 33a, 133a, 233a, 733a, 933a... Belt tooth crest, 33b, 133b, 233b, 733b, 933b... Belt tooth root, 34. Auto tension spring, 36 ... Idle pulley shaft, 38, 138, 238, 338, 438 ... Idle pulley, 40, 46, 52, 60 ... Driven roller shaft, 42, 48, 54, 58, 142, 148, 154, 158, 242, 248, 254, 258, 342, 348, 354, 358, 442, 448, 454, 458, 558, 658... Driven roller, 44... Sorting blade, 50. ... Roller boss, 162, 262 ... Belt recess, 164, 264, 364 ... Rifuranji unit, 166,266 ...... rollers recess, 168,268 ...... rollers protrusions, BL ...... bills.

Claims (9)

A pulley having a rotatable cylindrical shape and having teeth formed on the outer peripheral surface;
A toothed portion formed on an inner peripheral surface meshes with a toothed portion of the pulley, and a drive belt that moves according to the rotation of the pulley;
It is a cylindrical shape that can rotate, and abuts against the medium across a medium conveyance path on which the medium on the outer peripheral surface side of the drive belt is conveyed at a position where the teeth of the drive belt do not contact the teeth of the pulley. A medium conveying device having a roller. Having a rotatable roller boss provided coaxially with the rotation shaft of the pulley;
The medium conveying apparatus according to claim 1, wherein the roller is provided at a position facing the roller boss across the medium. The medium conveying apparatus according to claim 1, wherein the roller is provided at a position separated from the pulley in a traveling direction of the drive belt. The drive belt has a belt recess in which a part of the tooth portion is formed lower than the tooth portion along the traveling direction of the drive belt,
The medium conveying apparatus according to claim 1, wherein the pulley has a flange portion in which a part of the tooth portion is formed higher than the tooth portion along the rotation direction of the pulley so as to contact the belt recess. The medium conveying apparatus according to claim 4, wherein the roller has a roller recess formed so that a portion facing the tooth portion of the pulley across the drive belt does not contact the outer peripheral surface of the drive belt. The belt recess is formed at a central portion in a direction perpendicular to the traveling direction of the drive belt,
The medium conveying apparatus according to claim 4, wherein the flange portion is formed at a central portion in a direction orthogonal to a rotation direction of the pulley. The belt recess is formed at both ends of the drive belt in the direction perpendicular to the traveling direction,
The medium conveyance device according to claim 4, wherein the flange portion is formed at both ends of the pulley in a direction orthogonal to a rotation direction. The pulley protrudes outward from the outer peripheral surface of the drive belt when the toothed portion of the drive belt meshes with the tooth portion of the pulley at both ends of the outer peripheral surface in the direction orthogonal to the rotation direction of the pulley. Having a flanged portion,
The medium conveying apparatus according to claim 1, wherein the roller is in contact with a flange portion of the pulley. A reception unit that accepts transactions related to the medium;
A transport unit for transporting the medium received by the reception unit;
A pulley having a rotatable cylindrical shape and having teeth formed on the outer peripheral surface;
A toothed portion formed on an inner peripheral surface meshes with a toothed portion of the pulley, and a drive belt that moves according to the rotation of the pulley;
It is a cylindrical shape that can rotate, and at a position where the tooth portion of the drive belt does not contact the tooth portion of the pulley, the drive belt contacts the medium across the medium conveyance path on which the medium is conveyed on the outer peripheral surface side. A medium transaction apparatus having a roller in contact therewith.

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